Machine for operating upon casting-patterns.



C. C. BLAKE.

MACHINE FOR OPERATING UPON CASTING PATTERNS.

APPLICATION FILED SEPT. 18, 1915 Patented May 28,1918.

3 SHEETS-SHEET 1- C. C. BLAKE.

MACHINE FOR OPERATING UPON CASTING PATTERNS.

APPLICATION FILED SEPT- I3, I915.

0Q 1 9 A 60 2 W wk 6 DU m 6 MM P 3 SHEETS-SHEET 2.

C. C. BLAKE.

MACHINE FOR OPERATING UPON CASTING PATTERNS. APPLICATION FILED SEPT. 18. I915.

Patented May 28, i918.

3 SHEETS-SHEET 3.

7 I I I k 5/ t *9 I I 6 a a T I' CHARLES c. BLAKE, INCORPORATED,

OF BROOKLINE, MASSACHUSETTS, ASSIGNOR TO C. C. BLAKE, 0F BOSTON, MASSACHUSETTS, A CORPORATION OF NEW YORK.

MACHINEFOB, OPERATING UPON CASTING-PATTERNS.

ieenaa.

To allwhom it may concern:

Beit known that I, CHARLES C. BLAKE, a

citizen of theIInited States, residing at Brookline, in the county of Norfolk and State of Massachusetts, have invented a new and useful Improvement in Machines for Operating upon Casting-Patterns, of which the following is a specification.

The present invention relates to machines for operating upon casting patterns, and more particularly to a machine for operating upon casting patterns which determine the form of the leaders used in automatic shoe machines.

These leaders comprise a sole-shaped body portion provided with a marginal flange the exterior face of which is beveled at the upper end thereof. The casting patternsfor these leaders are now made by first producing a sole-shaped blank having the shrinkage of cast iron and the spring of the last measurements incorporated therein, then inserting the blank into a machine provided with automatic mechanism for winding a strip of paper around the edge of the blank to form a flange thereon, and then inserting the pattern, having the marginal flange thereon, into a machine'which imparts the draft. to the flange necessary for the removal of the pattern from the sand. After the pattern is removed from this machine it is finished manually by removing the surplus stock at the-upper end ofthe exterior face of the flange to. form the bevel, hereinbefore referred to, in the leader.

The object of the present invention is to produce a machine for removing the surplus stock from the casting pattern.

To the accomplishment of this object, and such others as may hereinafter appear, the features of the invention relate to certain devices, combinations and arrangements of parts hereinafter described and then set forth broadly and in detail in the appended claims which possess advantages readily apparent to thoseskilledin the art.

The various features of the present invention will be best understood froman inspection of the accompanying drawings illustrating the best form of the invention at present known tothe inventor, in which,

Figure 1 is afront elevation of the casting pattern beveling machine;

Fee a e p a e Specification of Letters Patent.

Fig. 3 is a'sectional front elevation; and

Fig. 4 is a sectional elevation of the cast ing pattern after it has been operated upon by the machine of the drawings.

The casting pattern which is to be beveled by the machine illustrated in the drawings comprises a sole-shaped blank 1 (Fig. 4) provided with a marginal flange 2. The

Patented May 28, 121. Application filed September 18, 1915. SerialNo. 51,450. i

bottom of the flange is narrower than the top to provide for the draft which permits the withdrawal of the pattern from the sand.

In the illustrated embodiment of the invention the pattern is supported upon the upper face of a stationary platen 3 secured to a bracket 4 carried by a column 5. In order to feed the pattern over the platen the opposite side faces of the flange 2 are engaged by a pair of rolls 6 and 7 (Fig. 3). The rolls 6 and 7 are substantially frustoconical in shape in accordance with the shape of the draft in the flange.

The roll 6 projects through a slot 7* in the platen 3 and is carried upon the upper end of a shaft 8 which is journaled in a sleeve bearing 9 pivoted at 10 on the bracket 4. The lower end of the shaft 8 is provided with a gear 11 which meshes with a gear 12 on a vertical shaft 13 in the bracket 4. The shaft 13 is driven through a worm gear 14 on the shaft which meshes with a worm 15 (Fig. 2) on a horizontal shaft 16 one end of which is journaled in the column 5 and the other end of which is journaled in a bracket 17 projecting from the column. The shaft 16 is driven from an electric motor 18 (Fig. 1) mounted in the base of the machine, by a belt 19 which passes over pulleys 20 and 21 secured to the shaft 16 and motor 18, respectively.

In order to maintain the roll 6 in Operative position against the inside face of the flange 2 thesleeve bearing 9 is connected to one end of a rod 22 (Fig. 3) the other end of which slides loosely in a guideway 24 on the bracket 4. Coiled around. the rod 22 is a spring 25 which isinterposed between the sleeve bearing 9 and the bracket 4. The inward movement of the roll 6 under the influence of the spring 25 is limited by a stop 26 on the sleeve bearing 9 which is arran ed to engage a bridge 27 on the bracket 4. To Withdraw the roll ,6 1mm the flange the journaled in bearings sleeve',b earing 9 is provided with an arm 28 which 'is connectedby' a rod 2'9"to a needle 30 (Fig. 1). v

The roll/7 is carried upon the upper end of theshaft l3"(Fig. 3). With the construc tion so far described the rotation of the rolls 6 and 7 feeds the pattern over the platen and also swings the pattern during the feedto n'iaintaiifithe reversely curved portions of the flange in proximity to ,he' operating point in the line of feed. The roll 7 1s dished urge the spre face. 1. #9 Permit he st mt'ion of'a rotary cutter 32 close to the roll.

- Th eiee r eem ke? a b l 3 2 3 arranged with its cutting edge 3?; in averel. Plehe ee tihe he we .e the r9 1 7 (Fi -'2) By mpl yin e hellhel ed e ere ed r9 hav g, i pper fae di h f n ee -e eeheeh o, the cutting ed it nife, e b t l 3% Will e o m d heme-e thee; f t e fl hse h he en- Per e l th eef- A The cutter rotates in a contra-clockwise ir et m i Orde to. te m. e eah ea n t ea e- By ret tihg h utteri s d re i e th r the te ehey'fer h cu er to. i t

-' x h w n firm?! ts SUPPQ t- TO ve ome.

t is. te den y. 1 presse t i Pr v d whi h e .ses e' .e hep f ee of: th flange close to "the operating point, The footBh isj ca rr'ied upon a guard 3Gwhiclr'covcr's the eit r. 32-

The cutter 32, is secured to one end of a horiaontal, shaft'37; (Big. 2) which is driven ll-T91 the haf .6.9 3 elt .Whi l passes eve ipul 'ey i e. nd 0. on, the. aft 3.7 and e .6; espeetiv lye. haft 7i je n ledin' bearings 41 formed ina yoke rising, from a PlhQQf-t whi h S HPPQrted t e 191M611 3.. The plate4=3 is arranged to slide, over. the, 1 tea 3 -tjo shift the position of; the cutter 82 P. lateral y. hu very i s d pth of; out To.

thisjend the platev d3. is'providedwith a. tonguea t (Rigs: 2 and 3.), which slides in a gu e W y. 4.5 fann d in the, platen 3; The.

utter 2 shiftedjto vary. its death ofeut by she'll. orankdever 4E6, pivoted on the platen 3', one end; of which is pivoted to the, plate 43; and, the other end of which is pro? vildechwith anoperating handle. 47; (Fig. 1 To limit the extent of-movement of the cutter the plate 43 is provided with stops 48. andAQllTig. 2) arrangedto engage, one at a time, 'a lug' -5Qil feouredjto theplaten 3-. The.

teplfia determi e the.nesition of th cutter wh n; it. makes it irpu'ghi out while the stop determines. the position of/the' cutter f 1-.;a s; finishing, cut. In order to hold the cutter in; any of its positions of adjustment a friction washer, 51 i is interposed; between the plate 43; andgthe headbf. a bolt. 52seredl theplatens.

T o operatefthe. machinethe treadle 30; is depressed to separatejthe. roll 6 from the roll heape ter s .then. placedupon the platen 3 with its exterior face positioned when the machine is started the cutter will mak it rough at up the flange p starting the machine the rolls 6 and 7 will feed the flange past the rotating cutter and will swing the flange at the curves thereof to maintain the flange in proximity to the cutter 32 in the line of feed. After the point of operation of the cutter has been transferred once around the flange the handle l7 manipulated to shift the stop l9 into position against the lug .50 to position the cutt r 32. Q1'its final fini ing It will be understood that, while it is preferred to employ the specific construction and arrangement of the parts shown and dc scribed, this conStruction and arrangement is not essential nor is the conjoint use of all the features of the invention essential, ex cept so far as specified in the appended claims, and it may be varied or modified without departing from the broader features ofthe invention.

What is claimed as new, is

1, A machine for operating upon a pattern for casting leaders for use in automatic shoe machines having a marginal flange, having, in combination, means for resting the pattern, and means. for beveling the exterior face of the flange at the upper edge thereof, substantially as. described. I

2. A machine for operating upon a pattern for casting leaders for use in automatic shoe machines having a marginal flange, having, in combination, means for support ing. the pattern, means for bevelingthe flange, and means for relatively actuating the'pattern. andoperating means to transfer the point of operation of the operating means around the pattern, substantially as described.

3. A machine for operating upon apattcrn for. casting leaders for-usein automatic shoe. machineshaving a. curved marginal flange, having,- in combination, mean's'for supporting. the pattern, meansforbeveling the exterior. faceof the flange at the upper. edge thereof, ma. means engaging the 0p: posite. side. faces of the'flange for feeding the pattern and: swinging the pattern. to maintainthe flange in the line of;feed,- substantially as described.

4. In aimachinefor operating upon a pat tern for casting leaders for use ina'utomatic shoemachines having a marginal'fiange, de-

vicesv for supporting, guiding and'feeding the upper edge thereof, substantially as described.

5. A machine for operating upon a pattern for casting leaders for use in automatic shoe machines having a marginal flange,,,,, having, in combination, a support for the pattern and a beveling knife relatively movable laterally to vary the depth of cut, and stops for limiting the extent of the relative lateral movement of the'support and knife, substantially as described.

6. A machine for operating upon a casting pattern having a marginal flange, having, in combination, a knife for beveling the flange of the pattern, .a laterally movable support therefor, and stops for limiting the, extent of movement of the support, one stop determining the position of the knife in making its rough cut and the other stop determining the position of the knife in making its finishing cut, substantially as described.

7 A machine for operating upon a casting pattern having a marginal flange, having, in combination, a support for the pattern, and a knife for beveling the flange on the pattern movable laterally from a position in Which it makes its rough cut to another position in Which it makes its finishing cut, substantially as described.

8. A machine for operating upon a casting pattern having a marginal flange, having, in combination, a support for the pattern, a knife for beveling the flange on the pattern movable laterally from a position in Which it makes its rough cut to another position in which it makes its finishing cut, and stops for determining the extreme positions of the knife, substantially as described.-

9. A machine for operating upon a casting pattern having a marginal flange, having, in combination, a support for the pattern, a slide carried thereby, a knife for beveling the flange on the pattern mounted on the slide, a handle for moving the slide to vary the depth of cut of the knife, stops for limiting the extent of movement of the slide, and a friction device for holding the slide in adjusted position, substantially as described.

10. A machine for operating upon a cast ing pattern having a marginal flange, having, in combination, a support for the pattern, a rotary cutter for beveling the exterior face of the flange at the upper edge thereof, and a roll having a face arranged to engage the exterior face of the flange and having a second face Which is dished on a curve concentric to the cutting edge of the cutter, substantially as described.

11. A machine for operating upon a casting pattern having a marginal flange, having, in combination, a support for the pattern, a cutter for bevelingthe flange and rotating in a direction ten ing to lift the pattern from the support, and a presser foot arranged to engage the top of the flange to prevent the lifting of the pattern, substantially as described.

CHARLES C. BLAKE.

Ucpies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

